Volumetric flow rate.
Liter per Hours to Hectoliters per Millisecond Converter — L/h to hL/ms
Convert Liter per Hours (L/h) to Hectoliter per Millisecond (hL/ms) using the exact conversion factor (1 liter per hours = 2.777778e-9 hectoliter per millisecond). See the formula, worked examples, and conversion table.
Liter per Hours to Hectoliters per Millisecond converter
Converter
Flow Rate Converter
Convert volumetric flow rates across metric, US, imperial, industrial, and scientific units.
Context values
Some unit families need one extra value for a physically accurate result.
Volumetric flow rate.
Result = input x 2.77777778e-7 / 100.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Liter per Hours to Hectoliters per Millisecond
Liter per Hours and Hectoliter per Millisecond both measure volumetric flow rate — how much volume passes a point over time — used to size pipes and pumps, monitor river or stream discharge, control industrial processes, and set medical infusion rates. Both are volumetric flow rate units.
Formula
hectoliters per millisecond = liter per hours × 2.777778e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 liter per hours equals 2.777778e-7 base units, and 1 hectoliter per millisecond equals 100 base units, so dividing one by the other gives the direct liter per hours-to-hectoliter per millisecond factor of 2.777778e-9.
Simple example
1 L/h × 2.777778e-9 = 2.777778e-9 hL/ms
1 liter per hours = 2.777778e-9 hectoliters per millisecond.
Real-world example
60 L/h × 2.777778e-9 = 1.666667e-7 hL/ms
60 liter per hours = 1.666667e-7 hectoliters per millisecond.
Conversion table
| Liter per Hours (L/h) | Hectoliter per Millisecond (hL/ms) |
|---|---|
| 0.1 L/h | 2.777778e-10 hL/ms |
| 1 L/h | 2.777778e-9 hL/ms |
| 10 L/h | 2.777778e-8 hL/ms |
| 60 L/h | 1.666667e-7 hL/ms |
| 100 L/h | 2.777778e-7 hL/ms |
| 1,000 L/h | 0.0000027778 hL/ms |
Reverse conversion: Hectoliter per Millisecond to Liter per Hours
2.777778e-9 hL/ms × 360000000 = 1.00000008 L/h
2.777778e-9 hectoliters per millisecond = 1.00000008 liter per hours.
liter per hours = hectoliters per millisecond × 360000000
For a page dedicated to this direction, see Hectoliter per Millisecond to Liter per Hours.
Understanding the Liter per Hours (L/h)
Volumetric flow rate.
Understanding the Hectoliter per Millisecond (hL/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many hectoliters per millisecond are in 1 liter per hours?
1 liter per hours equals 2.777778e-9 hectoliters per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert liter per hours to hectoliter per millisecond?
Multiply the liter per hours value by 2.777778e-9. The converter above does this instantly to whatever precision you set.
How do I convert hectoliter per millisecond back to liter per hours?
Use the reverse factor: 1 hectoliter per millisecond equals 360,000,000 liter per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a liter per hours?
Liter per Hours (L/h) is a unit of flow rate.
What is a hectoliter per millisecond?
Hectoliter per Millisecond (hL/ms) is a unit of flow rate.
Is the liter per hours to hectoliter per millisecond conversion exact?
Yes. Both liter per hours and hectoliter per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 2.777778e-9 used above is exact to as many digits as you choose to display.
What's the difference between volumetric and mass flow rate?
Volumetric flow rate measures the volume of fluid passing a point per unit time (for example, liters per second). Mass flow rate measures the mass instead. For a fluid of constant density the two are directly proportional, but for compressible fluids like gases, mass flow is often the more meaningful quantity.